Content Egg uses some parts of the default Bootstrap, currently we didn't find any incompatibilities with any themes.
There are some themes with extended support of the plugin. If you know any additional themes, write to us, so we can add theme to the list.
The extended support includes:
Synchronization between the theme offer and price snippets and the Content Egg, so you can create a deal site
A special automatic e-commerce look for Posts with Content Egg
Special layouts for price comparisons posts
The ability to mix Content Egg Data and theme functions and shortcodes
About 20 additional output templates for shortcodes and combined shortcodes
Additional widgets and styling
Check video of some combinations.